p {
    margin: 0;
}

#wrapper {
    margin-top: 10%;
    margin-left: 10%;
    width: 500px;
    height: 500px;
    border: 2px solid pink;
    border-radius: 50px;
    padding: 20px;
    background: lightblue;
}

#pink-box {
    margin-left: 30px;
    margin-top: 20px;
    width: 200px;
    height: 100px;
    border: 3px dashed black;
    background: pink;
}

#green-box{
    box-sizing: border-box;
    width: 150px;
    height: 100px;
    font-size: 10px;
    color: red;
    padding-top: 30px;
    padding-bottom: 20px;
    background: darkgreen;
}

#white-box{
    width: 150px;
    height: 100px;
    margin-top: 20px;
    font-size: 10px;
    background: white;
}